WO2019032454A1 - Procédé et ensemble pour une sonde sans fil et interrogateur - Google Patents

Procédé et ensemble pour une sonde sans fil et interrogateur Download PDF

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Publication number
WO2019032454A1
WO2019032454A1 PCT/US2018/045376 US2018045376W WO2019032454A1 WO 2019032454 A1 WO2019032454 A1 WO 2019032454A1 US 2018045376 W US2018045376 W US 2018045376W WO 2019032454 A1 WO2019032454 A1 WO 2019032454A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature data
probe
interrogator
sensor
chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2018/045376
Other languages
English (en)
Inventor
Philip Preston
Walter RACZNYSKI
Charles Zimnicki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Preston Industries Inc
Original Assignee
Preston Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Preston Industries Inc filed Critical Preston Industries Inc
Priority to CN201880050397.1A priority Critical patent/CN110998262A/zh
Priority to EP18843489.8A priority patent/EP3665455A4/fr
Priority to EP25165423.2A priority patent/EP4571278A3/fr
Publication of WO2019032454A1 publication Critical patent/WO2019032454A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2207/00—Application of thermometers in household appliances
    • G01K2207/02—Application of thermometers in household appliances for measuring food temperature
    • G01K2207/06—Application of thermometers in household appliances for measuring food temperature for preparation purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2215/00—Details concerning sensor power supply

Definitions

  • the present disclosure relates generally to a method and system for the wireless interrogation of the state of a body immersed in a circulatory bath or tank for heating and/or cooling. More specifically, the present disclosure is directed towards a sensing probe having multiple thermal sensors for data enabling the determination of the core and surface temperatures associated with the immersed body in combination with one or more wireless connections leading to a controller (on a laboratory or kitchen thermal circulator device or via some intermediary means, itself connected to said controller) such that the user or the algorithm embedded within the controller can determine temperature information (e.g., core temperature) of the body being immersed and, optionally act upon this 'closed-loop' information.
  • a controller on a laboratory or kitchen thermal circulator device or via some intermediary means, itself connected to said controller
  • thermometers e.g., meat thermometers
  • meat thermometers have been used to help provide enhanced information in order for users to be enabled to obtain more consistent results for cooking and laboratory applications.
  • the use of a meat thermometer can provide a visual indication on whether the meat is still undercooked or if the meat is in danger of being overcooked.
  • these conventional types of food thermometers provide a passive indication of temperature and generally rely on the cook to remember to check the temperature and to act upon this additional information. This creates problems insofar as cook or laboratory personnel may lack the requisite experience, discipline, be distracted or the sample or food being processed may be unfamiliar, or the style of food preparation may be new to the cook.
  • thermometer may prove unusable for certain cooking or laboratory environments, such as sous vide style cooking and similar heated baths for laboratory environments where the food or materials are not accessible to a piercing-type probe because using one to materials contained in a bag would pierce the bag and elevate pathogen risk to the food.
  • wireless food thermometers have been introduced to provide a more convenient display of the temperature.
  • such wireless food thermometers generally provide only a passive display of the temperature and may not provide sufficiently accurate or detailed information during cooking, such as a completion time, when to adjust a temperature, when to start or finish a particular cooking stage such as searing, or how long to let the food rest after removing it from heat.
  • such wireless food thermometers do not provide machine-readable versions of this information such that a controller associated with applying heat to the bath could use to "steer" the cooking.
  • such wireless food thermometers have a limited range for transmitting information, especially in light of the challenges to conserve space, provide a waterproof enclosure, and withstand elevated cooking or process temperatures.
  • Such products may have limited transmitting capability due to the composition of the cookware or lab hardware being used.
  • such approaches may require an "on board" power source, such as a battery, to enable such wireless communication.
  • an "on board” power source such as a battery
  • Such an approach is undesirable and even dangerous for a food application such as sous vide, and may prove infeasible for a body (whether a lab sample or food source) that must be refrigerated prior to being placed in a heated bath.
  • Applicant believes that there are no thermometer, communication and interrogation systems which provide a battery-free wireless system for readily measuring temperature and deriving cook or heating time information to a machine intelligence contained in a circulator, to the cook or for a laboratory technician to control an experiment or process variable.
  • thermometer and interrogator system for using with a sample or foodstuff in a circulating water bath with a reliable antenna or other wireless data transmitting and receiving device and a transmitter for querying and a receiver for receiving a variety of temperature data and providing an accurate summary of processed temperature information (e.g., core temperature, remaining cook time) therefrom.
  • a very low frequency signal is a radio signal having a frequency below 1 MHz and preferably on the order of less than 500 KHz, in the event of a non-conductive pot or bath container, and preferably on the order of 500KHz-1 MHz in the event of a conductive pot or bath container.
  • a very high frequency (GHz-THz) signal are electromagnetic signals in the infrared or visible light spectrum, in the case of infrared this signal can occupy
  • a photo emitter such as an LED
  • a photo detector such as a solar cell or PIN diode, etc.
  • a light transmitter is an infrared or visible light transmitter (such as a LED with suitable emission characteristics)
  • a probe array is a structure for placing in a body that includes multiple temperature sensors and a transmitter or an antenna.
  • a body is the protein or sample being measured by a probe and is placed in a container for immersion in a bath.
  • the present invention relates to one or more of the following features, elements or combinations thereof.
  • the Applicants have invented a probe assembly for providing body temperature data for a body immersed in a bath (either in a laboratory setting or kitchen, such as sous vide) to a remote interrogator outside of the bath.
  • the probe most preferably includes a rigid member (for ease of insertion), though variants of the present invention may incorporate non- and semi-rigid members also (e.g., reminiscent in rigidity of a coffee stirrer or soda straw).
  • the probe array includes a first end and a second end, and a shaft extending between the two ends.
  • the first end of the probe is inserted into a body (whether a protein for cooking purposes or a laboratory sample) and the second end of the probe includes for low frequency RF signals an antenna and transmitter and receiver (or for very high, THz signals, an emitter and detector) and an electronic chip.
  • the probe further includes multiple temperature sensors disposed along the length of the shaft, with at least one near the first end and one at the most distal end.
  • the on-board controller IC receives temperature data from the sensors and stores the temperature data to provide to the antenna in response to interrogation from an interrogating signal.
  • the probe array includes a capacitor and a light energy harvester (photodetector) electrically for receiving light energy from a remote light source (whether solar powered or via another light source) to power the transmitter and chip and to an infrared or visible light transmitter (photoemitter) for sending temperature data back to the interrogating device .
  • a transmitter sends a very high frequency electromagnetic (infrared or visible light) signal from one or more probes to an interrogating transponder.
  • the light enabled transponder or circulator requires a physical "window" embedded in its housing that is transparent to electromagnetic energy in the infrared or visible wavelength ranges, and this window can be embedded in the circulator, heated bath, the temperature controlled bath or an attachment.
  • the transponder further optionally includes an LED whose light energy can be harvested by the probes working with the transponder.
  • the signal from the probe(s) is transmitted preferably through a infrared transmitter (emitter, such as an IR LED), preferably by means of a modulated signal using a carrier frequency, similar to a television remote control (though a visible light wavelength may be used as well).
  • the signal can also be sent using infrared with a serial protocol similar to IRDA.
  • power can also be harvested by the probe from ordinary ambient illumination.
  • the very low frequency antenna on the probe bi-directionally communicates with and receives power transmitted from one or more interrogator antennas.
  • the chip receives power via the carrier envelope associated with the interrogation signal, so as to avoid the need for a battery that would otherwise be required to power the circuit, though the probe may also include a capacitor for storing energy received from the interrogating signal.
  • This interrogator antenna or antennas can be integral to or added to the body of the bath (e.g., one or more surfaces of a pot, sous vide cooker or laboratory beaker or the like).
  • the interrogator antenna(s) comprises one or more conductive loops surrounding the bath so as to ensure uninterrupted interrogation of the probe.
  • the interrogator antenna further connects - either wirelessly via relay coils or via a "hard” electrical connection— to an interrogator that takes the multiple temperature sensor readings and interprets their values to determine: 1) what the core temperature is; and 2) what the remaining time is for cooking or remaining in the bath.
  • Still another object of the present invention is to provide a probe and interrogatory system that can be used wirelessly without an on-board battery power source.
  • Figure 1 is a perspective figure of a probe and interrogator assembly in accord with a first preferred embodiment of the present invention.
  • Figure 3 is a perspective view of the probe shown in figure 1 about to be inserted into a protein body.
  • Figure 4 is an alternative probe configuration of another preferred embodiment of the present invention.
  • Figure 5 is a further alternative embodiment showing the probe components according to yet another preferred embodiment of the present invention.
  • Figures 6A, 6B and 6C show different example placements of a probe in accordance with the present invention.
  • Figure 6D shows a prophetic example temperature profile in accord with the application of the probe pursuant to the present invention.
  • Figure 7 shows yet another variant of the probe in accord with still another embodiment of the present invention.
  • FIGS 8A and 8B shows an infrared, visible light or solar powered variant of the probe in accordance with yet another embodiment of the present invention.
  • FIGS 9A-B shows elements of the probe and interrogator assembly in accord with another preferred embodiment of the present invention.
  • the assembly includes a tank 20 or cooker, a probe 30, a circulator 40 (which can alternatively comprise a heated bath, or temperature controlled bath) and an interrogator 50.
  • the tank 20 is preferably a non- conductive material so as to eliminate any type of "Faraday cage” effect, though this can be offset, among other means, by changing the frequency of the radio communication used with the probe 30 or by judicial placement of the interrogating antenna to be within the bounds of the "Faraday cage". That is, applicant believes that the use of a non- conductive tank permits a much lower frequency (e.g., around 300-400KHz, such as very low frequency RFID signals) for communicating effectively with the probe, while the use of a conductive tank would require a higher frequency range (e.g., 500KHz to 1 MHz), while still staying below higher frequency signals that would not work sufficiently in water to interrogate the probe 20.
  • a non- conductive tank permits a much lower frequency (e.g., around 300-400KHz, such as very low frequency RFID signals) for communicating effectively with the probe, while the use of a conductive tank would require a higher frequency range (e.g., 500KHz to 1 MHz), while still staying
  • the probe 30 is comprised of a first end 32 or tip and a second end 34 or head.
  • the second end 34 has an antenna 35 and a chip or microcontroller 36 located thereon for communication with and receiving power supply from the antenna loops 28.
  • the probe also contains multiple sensors 38 which are linearly displaced along the length or axis of the shaft 39. The probe thus enables readings of different points inside the protein or body upon insertion.
  • an alternative version of the probe 130 can include a head 134 with an antenna 135, and a microcontroller 136 on the shaft 139, as well as a flexible portion 137 (pronounced of the joint in a bendable straw) for permitting the head 134 to lay flat on the protein after the probe 130 is inserted.
  • the antenna 135 coil preferably comprises approximately 300 turns of @41 enameled wire with an OD of 40mm and an ID of roughly 30mm and a thickness of around 1 mm. This iteration of coil can be placed (for instance) on either a microcontroller 136 such as a polyester flexi circuit or a very thin (0.1 mm) FR4.
  • a microcontroller 136 such as a polyester flexi circuit or a very thin (0.1 mm) FR4.
  • a microcontroller 236 that is preferably a very low power 32 bit microcontroller, a diode 236a and small capacitor 236b (for energy harvesting from the signals being received) and a plurality of thermal sensors 238 placed in a linear spaced-apart fashion, each being read upon every query from the interrogator 50— all cooperatively providing a thermal cross-section that includes surface and core temperatures to the querying device.
  • FIGURES 6a-c Some of the advantages and uses of the probe is shown in FIGURES 6a-c. That is, the probe can be used by the interrogator 50 to determine the core temperature for cooking purposes without concern for precise placement of the probe within the body of the protein. This capability is enabled through the array of sensors 38, each of which has its own associated temperature. Such information, as shown in a prophetic example graphed in FIGURE 6d, is shown with each sensor corresponding to an "S" value on the graph.
  • This data is processed by a controller (not shown) in the interrogator 50 whereby the inverse of the temperature (i.e., the coolest temperature) will be interpreted to be the "core" temperature for calculating the remaining time for cooking.
  • the use of such data processing by the controller reduces a chefs workload from having to determine a protein type, thickness, starting temperature, shape, to merely requiring the chef know the type of protein involved.
  • the present invention can, therefore, enable virtually automated cooking, avoiding the requirement for the cook to enter the type and shape of protein, the thickness, done-ness temperature, etc. with the only user input settings being: a) identification of foodstuff (i.e.: steak, chicken, carrots, etc.) and b) time past Pasteurization (otherwise known as” tenderness time”) because as a rule of thumb: connective tissues break-down during prolonged low-temperature cooking times and given sufficient cooking time: even the toughest proteins can become tender.
  • the probe 230 can include a multidimensional or 3D antenna 236 comprising multiple coils that define multiple planes for superior communication with the interrogator 50.
  • the tank it may be possible for the tank to comprise just a single antenna loop 28 surrounding the tank 20.
  • the probe 330 is preferably comprised of a transmitter 336 which is preferably a visible light or infrared light transmitter which sends very high frequency light signals (>700THz) to a transponder 352 such as a photo transistor/photo detector on the interrogator 350.
  • a transmitter 336 which is preferably a visible light or infrared light transmitter which sends very high frequency light signals (>700THz) to a transponder 352 such as a photo transistor/photo detector on the interrogator 350.
  • this embodiment of the probe 330 involves a first end 332 or tip and a second end 334 or head and a number of sensors 337 on the axis defined therebetween.
  • the probe 330 is in a sealed pouch and the first end 332 is inserted in a foodstuff or protein such that only the second end 334 is exposed from the body of the protein but still within the confines of the sealed pouch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention concerne un procédé et un système pour l'interrogation sans fil d'un corps immergé dans un bain circulatoire ou un réservoir pour le chauffage. Plus particulièrement, le système peut comprendre une sonde comprenant de multiples capteurs permettant de mesurer une température centrale associée au corps immergé en association avec une ou plusieurs connexions sans fil menant à un contrôleur (sur un circulateur ou une interface utilisateur) de sorte que l'utilisateur peut déterminer des informations de température (par exemple, la température centrale) du corps immergé.
PCT/US2018/045376 2017-08-07 2018-08-06 Procédé et ensemble pour une sonde sans fil et interrogateur Ceased WO2019032454A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201880050397.1A CN110998262A (zh) 2017-08-07 2018-08-06 用于无线探针和询问器方法和组件
EP18843489.8A EP3665455A4 (fr) 2017-08-07 2018-08-06 Procédé et ensemble pour une sonde sans fil et interrogateur
EP25165423.2A EP4571278A3 (fr) 2017-08-07 2018-08-06 Ensemble pour une sonde sans fil et interrogateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/670,762 2017-08-07
US15/670,762 US20190041271A1 (en) 2017-08-07 2017-08-07 Method And Assembly For A Wireless Probe And Interrogator

Publications (1)

Publication Number Publication Date
WO2019032454A1 true WO2019032454A1 (fr) 2019-02-14

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PCT/US2018/045376 Ceased WO2019032454A1 (fr) 2017-08-07 2018-08-06 Procédé et ensemble pour une sonde sans fil et interrogateur

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US (1) US20190041271A1 (fr)
EP (2) EP4571278A3 (fr)
CN (1) CN110998262A (fr)
WO (1) WO2019032454A1 (fr)

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US10883883B2 (en) * 2018-02-13 2021-01-05 Manford Development Limited Wireless probe for food, and system and method for wireless food temperature real-time monitoring
CN112217291A (zh) * 2019-07-11 2021-01-12 泰科电子(上海)有限公司 传感设备和包括其的电磁设备系统
US11579019B2 (en) 2019-08-15 2023-02-14 Te Connectivity Solutions Gmbh Wireless energy-harvesting sensor probe
EP4063810A1 (fr) * 2021-03-22 2022-09-28 Tyco Electronics (Shanghai) Co., Ltd. Sonde de capteur de récupération d'énergie sans fil utilisant l'orientation de faisceau pour le prélèvement d'alimentation dans un four
EP4163610A1 (fr) * 2021-10-05 2023-04-12 Versuni Holding B.V. Sonde et système de détection de température
CN114370953B (zh) * 2021-12-29 2025-10-31 广东美的厨房电器制造有限公司 测温装置、终端及其控制方法、装置和可读存储介质
EP4212840B1 (fr) * 2022-01-17 2025-03-05 Vorwerk & Co. Interholding GmbH Système comprenant un dispositif de commande et un thermomètre alimentaire
US20230262128A1 (en) * 2022-02-15 2023-08-17 Saudi Arabian Oil Company Intelligent environmental health device
TWM637469U (zh) * 2022-09-07 2023-02-11 睿生光電股份有限公司 光偵測器
WO2024187782A1 (fr) * 2023-03-16 2024-09-19 珠海美佳音科技有限公司 Thermomètre pour aliments, répéteur et ensemble thermomètre pour aliments
USD1101580S1 (en) 2024-01-31 2025-11-11 Sharkninja Operating Llc Temperature probe holder

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US20060045167A1 (en) * 2004-08-27 2006-03-02 Ivan Pawlenko Self-contained temperature monitor
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Also Published As

Publication number Publication date
EP4571278A3 (fr) 2025-08-27
EP4571278A2 (fr) 2025-06-18
US20190041271A1 (en) 2019-02-07
EP3665455A4 (fr) 2021-04-28
EP3665455A1 (fr) 2020-06-17
CN110998262A (zh) 2020-04-10

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